대입열 수직상진 용접의 조선적용에 관한 연구

Abstract

The container mobilization of material resources has increased continuallyowing to international economy growth and overseas trade increase in recent years. There are large amounts of order received for container carriers which are the biggest in the world ranging from 8,000 TEU to 10,000 TEU or above. The very large container carriers have minimum thickness of sheer strake, upper deck and hatch coaming about 65mm~90mm. Therefore, this study is performed in order to developvertical welding process with high deposition rates applicable to thickplate above 65mm thickness. Electrogas welding process with 1 pole and 2 poles has been developed to apply to vertical joint with thick plates in the shipyard. In this paper, it was explained that the relationship of cross section to various groove types and executed that electrogas welding for thick plates. The mechanical tests were carried out to verify the soundness and effectiveness of EGW.